Discrete-Time System under General Probability Distribution ◾ 55
erefore, P
0
(k, j) stands for the probability that system has been in 0 status
for j time at the time of k; P
1
(k, j) stands for the probability that system has
been in 1 status for j time at the time of k; and P
2
(k, j) stands for the prob-
ability that system has been in 2 status for j time at the time of k, i.e., when
j = 0, 1, …, k − 1,
()
()
()
()
()
()
()
()
()
()
()
() () ()
() () ()
() () ()
=
== −=
−− =
=
== −=
−− =
=
== −=
−− =
===
===
===
…
…
…
,
0
11
,
1
12
,
2
10
0
1
2
0
1
2
0
1
2
PkjP
Zk Zk j
Zk j
PkjP
Zk Zk j
Zk j
PkjP
Zk Zk j
Zk j
PkkPZk Z
PkkPZk Z
PkkPZk Z
when j = k and k < j,
P
0
(k, j) = 0, P
1
(k, j) = 0, P
2
(k, j) = 0.
e mathematical model of the repa ...